Struct ffmpeg_next::filter::context::Sink

pub struct Sink<'a> { /* private fields */ }

Implementations

impl<'a> Sink<'a>

pub unsafe fn wrap<'b>(ctx: &'b mut Context<'b>) -> Sink<'b>

impl<'a> Sink<'a>

pub fn frame(&mut self, frame: &mut Frame) -> Result<(), Error>

Examples found in repository

examples/transcode-audio.rs (line 167)

    fn get_and_process_filtered_frames(&mut self, octx: &mut format::context::Output) {
        let mut filtered = frame::Audio::empty();
        while self
            .filter
            .get("out")
            .unwrap()
            .sink()
            .frame(&mut filtered)
            .is_ok()
        {
            self.send_frame_to_encoder(&filtered);
            self.receive_and_process_encoded_packets(octx);
        }
    }

pub fn samples(&mut self, frame: &mut Frame, samples: usize) -> Result<(), Error>

pub fn set_frame_size(&mut self, value: u32)

Examples found in repository

examples/transcode-audio.rs (line 49)

fn filter(
    spec: &str,
    decoder: &codec::decoder::Audio,
    encoder: &codec::encoder::Audio,
) -> Result<filter::Graph, ffmpeg::Error> {
    let mut filter = filter::Graph::new();

    let args = format!(
        "time_base={}:sample_rate={}:sample_fmt={}:channel_layout=0x{:x}",
        decoder.time_base(),
        decoder.rate(),
        decoder.format().name(),
        decoder.channel_layout().bits()
    );

    filter.add(&filter::find("abuffer").unwrap(), "in", &args)?;
    filter.add(&filter::find("abuffersink").unwrap(), "out", "")?;

    {
        let mut out = filter.get("out").unwrap();

        out.set_sample_format(encoder.format());
        out.set_channel_layout(encoder.channel_layout());
        out.set_sample_rate(encoder.rate());
    }

    filter.output("in", 0)?.input("out", 0)?.parse(spec)?;
    filter.validate()?;

    println!("{}", filter.dump());

    if let Some(codec) = encoder.codec() {
        if !codec
            .capabilities()
            .contains(ffmpeg::codec::capabilities::Capabilities::VARIABLE_FRAME_SIZE)
        {
            filter
                .get("out")
                .unwrap()
                .sink()
                .set_frame_size(encoder.frame_size());
        }
    }

    Ok(filter)
}